保存数据

window.indexedDB =
  window.indexedDB ||
  window.webkitIndexedDB ||
  window.mozIndexedDB ||
  window.msIndexedDB;
window.IDBTransaction =
  window.IDBTransaction ||
  window.webkitIDBTransaction ||
  window.msIDBTransaction;
window.IDBKeyRange =
  window.IDBKeyRange || window.webkitIDBKeyRange || window.msIDBKeyRange;
window.IDBCursor =
  window.IDBCursor || window.webkitIDBCursor || window.msIDBCursor;
function SaveData() {
  var dbName = 'indexedDBTest'; // 数据库名 var
  dbVersion = 20220430; // 版本号 var idb; var
  dbConnect = indexedDB.open(dbName, dbVersion);
  dbConnect.onsuccess = function (e) {
    idb = e.target.result;
    var t = idb.transaction(['users'], 'readwrite');
    var s = t.objectStore('users');
    console.log(store); // ->{IDBObjectStore}

    var v = { userID: 1, userName: '王五', address: '北京' };
    var r = s.put(v);
    r.onsuccess = function (e) {
      console.log('数据保存成功');
    };
    r.onerror = function (e) {
      console.log('数据保存失败');
    };
  };
  dbConnect.onerror = function (e) {
    console.log('连接 indexedDB 数据库失败');
  };
}

// 主键为自增、内联主键时不需要指定主健值
store.put({
  userName: '谭小胖',
  address: '魏县',
}); // 主键为内联、非自增主键时需要指定主键值
store.put({ userTd: 1, userName: '谭小胖', address: '魏县' });
// 主健为外部主键时,需要另行指定主健值,此处主键值为 1

store.put({ userName: '谭小胖', address: '魏县' }, 1);